"I think the most important thing is the event went ahead because it shows of the stability the teams," said Di Resta.
"But this has not been the same event without fans. I hope they come back and double their numbers next year because it’s a pretty special event, even to see it without the atmosphere. But somehow, you just want to see the grandstands full.
"It's tough times at the moment but we miss them all and I think we want to see them back at every sporting event and this is one of them."
The fuel difficulties had been caused by a late safety car period that ended sooner than the United Autosports garage would have liked, meaning the fuel consumption was higher than expected.
Following his stressful closing stint of the race, Hanson added: "It was difficult to judge the gap behind because the safety car inflates the times," the young Briton said.
"So once everything went green, we realised we didn’t have the margin we thought. So it was suddenly a case of wondering, working out whether if we pitted and they didn’t have to whether they were going to come out in front.
"So the last two laps we had to push like crazy to make sure we stayed out in front. But we did and it worked well."
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